void gui_init(struct dt_iop_module_t *self)
{
self->gui_data = malloc(sizeof(dt_iop_channelmixer_gui_data_t));
dt_iop_channelmixer_gui_data_t *g = (dt_iop_channelmixer_gui_data_t *)self->gui_data;
dt_iop_channelmixer_params_t *p = (dt_iop_channelmixer_params_t *)self->params;
self->widget = GTK_WIDGET(gtk_vbox_new(FALSE, DT_GUI_IOP_MODULE_CONTROL_SPACING));
g->dtlabel1 = DTGTK_LABEL( dtgtk_label_new(_("output channel"), DARKTABLE_LABEL_TAB | DARKTABLE_LABEL_ALIGN_RIGHT) );
g->combo1 = GTK_COMBO_BOX( gtk_combo_box_new_text() );
gtk_combo_box_append_text(g->combo1,_("hue"));
gtk_combo_box_append_text(g->combo1,_("saturation"));
gtk_combo_box_append_text(g->combo1,_("lightness"));
gtk_combo_box_append_text(g->combo1,_("red"));
gtk_combo_box_append_text(g->combo1,_("green"));
gtk_combo_box_append_text(g->combo1,_("blue"));
gtk_combo_box_append_text(g->combo1,_("gray"));
gtk_combo_box_set_active(g->combo1, CHANNEL_RED );
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(g->dtlabel1), TRUE, TRUE, 5);
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(g->combo1), TRUE, TRUE, 5);
g->dtlabel2 = DTGTK_LABEL( dtgtk_label_new(_("source channels"), DARKTABLE_LABEL_TAB | DARKTABLE_LABEL_ALIGN_RIGHT) );
GtkBox *hbox = GTK_BOX( gtk_hbox_new(FALSE, 0));
g->vbox = GTK_VBOX(gtk_vbox_new(FALSE, DT_GUI_IOP_MODULE_CONTROL_SPACING));
gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(g->vbox), TRUE, TRUE, 5);
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(g->dtlabel2), TRUE, TRUE, 5);
g->scale1 = DTGTK_SLIDER(dtgtk_slider_new_with_range(DARKTABLE_SLIDER_BAR,-2.0, 2.0, 0.005, p->red[CHANNEL_RED] , 3));
g_object_set (GTK_OBJECT(g->scale1), "tooltip-text", _("amount of red channel in the output channel"), (char *)NULL);
dtgtk_slider_set_label(g->scale1,_("red"));
g->scale2 = DTGTK_SLIDER(dtgtk_slider_new_with_range(DARKTABLE_SLIDER_BAR,-2.0, 2.0, 0.005, p->green[CHANNEL_RED] , 3));
g_object_set (GTK_OBJECT(g->scale2), "tooltip-text", _("amount of green channel in the output channel"), (char *)NULL);
dtgtk_slider_set_label(g->scale2,_("green"));
g->scale3 = DTGTK_SLIDER(dtgtk_slider_new_with_range(DARKTABLE_SLIDER_BAR,-2.0, 2.0, 0.005, p->blue[CHANNEL_RED] , 3));
g_object_set (GTK_OBJECT(g->scale3), "tooltip-text", _("amount of blue channel in the output channel"), (char *)NULL);
dtgtk_slider_set_label(g->scale3,_("blue"));
gtk_box_pack_start(GTK_BOX(g->vbox), GTK_WIDGET(g->scale1), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(g->vbox), GTK_WIDGET(g->scale2), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(g->vbox), GTK_WIDGET(g->scale3), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(hbox), TRUE, TRUE, 5);
g_signal_connect (G_OBJECT (g->scale1), "value-changed",
G_CALLBACK (red_callback), self);
g_signal_connect (G_OBJECT (g->scale2), "value-changed",
G_CALLBACK (green_callback), self);
g_signal_connect (G_OBJECT (g->scale3), "value-changed",
G_CALLBACK (blue_callback), self);
g_signal_connect (G_OBJECT (g->combo1), "changed",
G_CALLBACK (output_callback), self);
}
static gboolean _label_expose(GtkWidget *widget, GdkEventExpose *event)
{
g_return_val_if_fail(widget != NULL, FALSE);
g_return_val_if_fail(DTGTK_IS_LABEL(widget), FALSE);
g_return_val_if_fail(event != NULL, FALSE);
GtkStyle *style=gtk_rc_get_style_by_paths(gtk_settings_get_default(), NULL,"GtkButton", GTK_TYPE_BUTTON);
if(!style) style = gtk_rc_get_style(widget);
// uninitialized?
if(style->depth == -1) return FALSE;
int state = gtk_widget_get_state(widget);
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
int x = allocation.x;
int y = allocation.y;
int width = allocation.width;
int height = allocation.height;
// Formating the display of text and draw it...
PangoLayout *layout;
layout = gtk_widget_create_pango_layout(widget,NULL);
pango_layout_set_font_description(layout,style->font_desc);
const gchar *text=gtk_label_get_text(GTK_LABEL(widget));
pango_layout_set_text(layout,text,-1);
GdkRectangle t= {x,y,x+width,y+height};
int pw,ph;
pango_layout_get_pixel_size(layout,&pw,&ph);
// Begin cairo drawing
cairo_t *cr;
cr = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_set_source_rgba(cr,
/* style->fg[state].red/65535.0,
style->fg[state].green/65535.0,
style->fg[state].blue/65535.0,*/
1,1,1,
0.10
);
cairo_set_antialias(cr,CAIRO_ANTIALIAS_NONE);
cairo_set_line_width(cr,1.0);
cairo_set_line_cap(cr,CAIRO_LINE_CAP_ROUND);
if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_UNDERLINED )
{
cairo_move_to(cr,x,y+height-2);
cairo_line_to(cr,x+width,y+height-2);
cairo_stroke(cr);
}
else if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_BACKFILLED )
{
cairo_rectangle(cr,x,y,width,height);
cairo_fill(cr);
}
else if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_TAB )
{
int rx=x,rw=pw+2;
if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_ALIGN_RIGHT ) rx=x+width-pw-8;
cairo_rectangle(cr,rx,y,rw+4,height-1);
cairo_fill(cr);
if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_ALIGN_RIGHT )
{
// /|
cairo_move_to(cr,x+width-rw-6,y);
cairo_line_to(cr,x+width-rw-6-15,y+height-2);
cairo_line_to(cr,x+width-rw-6,y+height-2);
cairo_fill(cr);
// hline
cairo_move_to(cr,x,y+height-1);
cairo_line_to(cr,x+width-rw-6,y+height-1);
cairo_stroke(cr);
}
else
{
// |
cairo_move_to(cr,x+rw+4,y);
cairo_line_to(cr,x+rw+4+15,y+height-2);
cairo_line_to(cr,x+rw+4,y+height-2);
cairo_fill(cr);
// hline
cairo_move_to(cr,x+rw+4,y+height-1);
cairo_line_to(cr,x+width,y+height-1);
cairo_stroke(cr);
}
}
cairo_set_antialias(cr,CAIRO_ANTIALIAS_DEFAULT);
cairo_destroy(cr);
// draw text
int lx=x+4, ly=y+((height/2.0)-(ph/2.0));
if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_ALIGN_RIGHT ) lx=x+width-pw-6;
else if( DTGTK_LABEL(widget)->flags&DARKTABLE_LABEL_ALIGN_CENTER ) lx=(width/2.0)-(pw/2.0);
gtk_paint_layout(style, gtk_widget_get_window(widget), state,TRUE,&t,widget,"label",lx,ly,layout);
return FALSE;
}
